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There are 18 words beginning with PROTOCH

Proto-Chamic — prop.n. A proposed common ancestor to the group of Chamic languages.
protochelin — n. (Organic chemistry) A tris(catecholamide) siderophore present…
protochemical — adj. Relating to protochemistry, the early study of chemistry. — adj. (Physics) Relating to the electrochemical action of protons…
protochemically — adv. In protochemical terms.
protochemist — n. An early chemist; a practitioner of protochemistry.
protochemistry — n. The chemistry of protons. — n. The early study of chemistry, before it became a rigorous established…
protochemists — n. Plural of protochemist.
protochloride — n. (Inorganic chemistry) Any of a series of chlorides of a particular…
protochlorides — n. Plural of protochloride.
protochlorophilide — n. Misspelling of protochlorophyllide.
protochlorophyll — n. A pigment that is converted to chlorophyll by the action of light.
protochlorophyllide — n. (Biochemistry) Any of several fluorescent pigments that are…
protochlorophyllides — n. Plural of protochlorophyllide.
protochordate — n. Any chordate of the phyla Hemichordata, Urochordata or Cephalochordata.
protochordates — n. Plural of protochordate.
protochromosome — n. A mass of chromatin in a cell nucleus that develops into a chromosome.
protochromosomes — n. Plural of protochromosome.
protochronism — n. The idea that Latin (or other languages) were generated by…

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